Audi A4 B9 Brake Vacuum Pump Failure — Diesel
Audi
A4
2015
2.0 TDI EA288
⚡ Quick Summary
Severity Level
High
Safe to Drive?
🚫 Do NOT Drive
Safety Impact
Direct safety risk — affects safe operation of the vehicle
Urgency Level
🟠 Fix Soon
The vacuum pump providing brake servo assistance on A4 B9 diesel can wear, causing a harder brake pedal and increased stopping distances. Vacuum pump replacement costs £200-400.
Repair / Solution
No confirmed fixes yet. Share yours below.
⚠️ Wrong Diagnosis?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Audi A4 2015 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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